2440340136 has 192 divisors, whose sum is σ = 7507019520. Its totient is φ = 738097920.

The previous prime is 2440340117. The next prime is 2440340137. The reversal of 2440340136 is 6310430442.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (2440340137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1540801 + ... + 1542383.

It is an arithmetic number, because the mean of its divisors is an integer number (39099060).

Almost surely, 2^2440340136 is an apocalyptic number.

2440340136 is a gapful number since it is divisible by the number (26) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2440340136, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3753509760).

2440340136 is an abundant number, since it is smaller than the sum of its proper divisors (5066679384).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2440340136 is a wasteful number, since it uses less digits than its factorization.

2440340136 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1678 (or 1662 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

The square root of 2440340136 is about 49399.7989469593. The cubic root of 2440340136 is about 1346.3256529052.

Adding to 2440340136 its reverse (6310430442), we get a palindrome (8750770578).

The spelling of 2440340136 in words is "two billion, four hundred forty million, three hundred forty thousand, one hundred thirty-six".